package com.itheima.reggie.common;

import com.itheima.reggie.exception.CustomException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import java.sql.SQLIntegrityConstraintViolationException;

/*
全局异常处理
 */
//这层的消息        注解的名称 -----用于捕获controller异常
@ControllerAdvice(annotations = {RestController.class, Controller.class})
@ResponseBody//响应回去的注解 需要json格式
@Slf4j
public class GlobalExceptionHandler {
    //处理的哪些异常
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex) {
        log.error(ex.getMessage());

        if (ex.getMessage().contains("Duplicate entry")) {
            String[] split = ex.getMessage().split(" ");
            String msg = split[2]+"已存在";
            return R.error(msg);
        }
        return R.error("未知错误");//根据ResponseBody注解返回JSON数据
    }
    @ExceptionHandler(CustomException.class)
    public R<String> exceptionHandler(CustomException ex){
        log.error(ex.getMessage());
        return R.error(ex.getMessage());
    }


}
